package jdbc;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

public class Test {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"删除用户","删除");
        System.out.println(userInfo);

        try (
                Connection connection = DBUtil.getConnection();
        ) {
            System.out.println("与数据库建立连接！");
            //3.创建语句对象
            Statement statement = connection.createStatement();
            String sql = "delete from userinfo " +
                    "where username = '"+ userInfo.getUsername() + "'";
            System.out.println(sql);
            int count = statement.executeUpdate(sql);
            System.out.println("删除"  + (count>0?"成功":"失败"));//三目运算符效率最快
        } catch (SQLException e) {
            e.printStackTrace();
        }



    }
}
